Slipper



FIG. 1 is a top and right front perspective view of a slipper showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof.

The side of the slipper not shown is a mirror image of the side of the slipper shown in FIGS. 1 and 4. 

The ornamental design for a slipper, substantially as shown and described. 